git: Porting: Document a callout_drain() replacement

[Francois Tigeot]

commit 317f674824039123cacbc3f365c2e35faa93207c
Author: François Tigeot <ftigeot at wolfpond.org>
Date:   Mon Nov 19 09:48:47 2012 +0100

    Porting: Document a callout_drain() replacement

Summary of changes:
 doc/porting_drivers.txt |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/317f674824039123cacbc3f365c2e35faa93207c


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